<!DOCTYPE html>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>

</head>
<body>
  <div id="app">
      {{ msg.split('').reverse().join('') }}
      <hr>
      methods中的方法 <br>
      {{ reverseMsg1() }}
      {{ reverseMsg1() }}
      {{ reverseMsg1() }}
      <hr>
      计算属性
      <br>
      {{ reverseMsg2 }}
      {{ reverseMsg2 }}
      {{ reverseMsg2 }}
  </div>
  <script src="./vue.js"></script>
  <script>
    const vm = new Vue({
      el: '#app',
      data: {
        msg: 'hello world'
      },
      methods: {
        reverseMsg1(){
          console.log('method执行了');
          return this.msg.split('').reverse().join('');
        }
      },
      computed: {
        reverseMsg2(){
          console.log('计算属性执行了');
          return this.msg.split('').reverse().join('');
        }
      }
    })
    
  </script>
</body>
</html>